Shock-absorber for vehicles.



J. WOLPERT.

SHOCK ABSORBER FOR VEHICLES. APPLIGATION FILED MAY 14, 1912.

1,057,105 Patented Mar.25,19135 UNITED STATES PATENT OFFICE.

JOSEPH WKDLPEBT, OF NEW BRUNSWICK, NEW JERSEY, ASSIGNOR TO JOSEPH F. WOL- ZPERT AND EDWARD A. MIAGHIB, BOTH OF NEW BRUNSWICK, NEW JERSEY.

SEQCK-ABSOBBER FOB VEHICLES.

Specification of Letters Patent. P te ted Mar. 25, 1913.

Application flied Kay 14, 1812. Serial No. 697,130.

11 and the flanged poition having a non-circular recess 21 in the face thereof the non-circular head 22 Toiall whom it may concern boxin Be it known that I, Josnrn Wont-mar, a. citizen of the United States of America,

and a resident of New Brunswick, in the county of Middlesex and State of New J on; sey, have invented certain new and usefullm rovements in Shock-Absorbers for Vehic es, of which the following is a specification.

My invention relates particularly class of shock absorbers which de tothat ends 0111 a sorbing a circular) the absorbing parts, extending arms, one to the running-gear her of which is attached to the qualities, and which comprises boxing, which contains and a pai' of radially Of,Wl'l1Gli;lS attache and the;

body of; e vehicle, the circular boxing be ing one! suspended between the running gea1' and the body of the vehicle.

The object oi. my inventionis to produce a sim lei and commercially practical device of this character which will retard.the vehicle sprin in its action both when expandand w en contracting.

Tn the drawings which form a part of this specificationFi re 1 is a fro t side view of my improve shock absorbdi; Fig. 2 is a front side view with the cover plate and its attached arm removed from the flanged boxing and parts broken away, Fig. 3 is a rear side view, the attaching arms bein broken away, and Fig. 4 is a horizonta section on theline 4--4 of Fig. 1.

11 is the circular flanged boxing provid-' ing a circular chamber and having attached thereto an attaching arm 12 of any convenient form. 13 is the circular cover plate fittin inthe circular chamber of the boxing and aving attached thereto the attachingarm 14 of any convenient form. .The arms 12 and 14 are provided with the usual holes 15 and 16 for attaching them respectively to the running-gear and body of the vehicle or to the upper and lower members of a 17 is a circular bushing aving a flanged portion 18 portion being positioned in a centrally lo.- cnicd ircular hole 20 in the rear face .of the and a neck port on 19, the neckconstructive reasons to employ both.

adapted to receive of a bolt having a non-circular stem 23; The non-circular stem 23 of the bolt passes through a correspondingnon-circular hole in the bushing 17 and the opposite or screw threaded end 24 of the bolt passes through a non-circular hole in the cover plate 13, and through a washer 25 wand is secured. by a nut 26. The non-circular portion of the bolt' is of sufiicient lengthrso that it projects into but not entirely through the non-circular hole in the cover plate, thus allowing for taking up wear without the washer com ing against the non-circular bolt stem.

Between the inside fee of the boxing 11 and the inside face of t e cover plate 13 and fitting closely within the circular cham: her are two plain disks 27 and 28, the inner disk 27 being of metal or other hard substance and lying adjacent the inside face of the boxing and the outer disk 28 being of rubber or other resilient material and located adjacent the inside face of the cover plate. Each of these plain disks has a central non-circular holeof a size to fit the noncircular bolt stem 23. The plain disks 27 and 28 and the cover plate are further locked together by circumferential segmental pro'ections 29 on the disk 27 engaging circum erential segmental recesses 30 and 32 on the disk 28 and the cover plate 13 respectively. Recess 31 on the peripheral flange of the boxing allows oscillation of the attaching arm 14;, the cover plate being located preferably within the lines of the boxlng.

When the parts are assembled it will be seen that, owing to the non-circular shape of the recess 21, bolt head 22, stem portion 23, and holes through which it passes, the only relative movement between parts is a movement between the boxing as one part and the rest of the device as the other part. it is e obvious that either the non-circularity of the holes and stem or the use of the projections 29 and recesses 30 and 32 might be omitted or dispensed with but it is preferable for,

having cmmfizgllmjh and fii zing cigseiy thmade and, a, securing nut mourified 0:1 12th:? 61mm chambw and smted. bethe screw threaded end of the stem, and 10 a il'ize meg-'52s} M161 th mind's: fac s maans for leckmg the dlsks and; cove? phm sw m grim -aircuimbushimgm0unttogether.

'csn 5 131916 a? the boxing & JQSEPH 'WOLPERE v I Jndmg through the i Wltnessest am, the central hula; 1 JOSEPH A. SEDAM,

GHARLLEB W. SEDAM, Jr. 

